If I am in about page (https://demo.gethugothemes.com/techfeed/about/) and click the home menu , it goes to https://demo.gethugothemes.com/techfeed/en/ this page where it shows a congratulation page .

Hey there,
just tried to start the hugo server after downloading your zip and got this issue:

hugo v0.87.0-B0C541E4+extended windows/amd64 BuildDate=2021-08-03T10:57:28Z VendorInfo=gohugoio
ERROR 2021/08/14 11:54:08 render of "taxonomy" failed: execute of template failed: template: _default/list.html:14:5: executing "_default/list.html" at <partial "head.html" .>: error calling partial: "A:\Hugo\sites\myblog\layouts\partials\head.html:25:18": execute of template failed: template: partials/head.html:25:18: executing "partials/head.html" at <add assets/ $favicon>: error calling add: can't apply the operator to the values
ERROR 2021/08/14 11:54:08 render of "home" failed: execute of template failed: template: index.html:14:5: executing "index.html" at <partial "head.html" .>: error calling partial: "A:\Hugo\sites\myblog\layouts\partials\head.html:25:18": execute of template failed: template: partials/head.html:25:18: executing "partials/head.html" at <add assets/ $favicon>: error calling add: can't apply the operator to the values
Error: Error building site: failed to render pages: render of "taxonomy" failed: execute of template failed: template: _default/list.html:14:5: executing "_default/list.html" at <partial "head.html" .>: error calling partial: "A:\Hugo\sites\myblog\layouts\partials\head.html:25:18": execute of template
failed: template: partials/head.html:25:18: executing "partials/head.html" at <add assets/ $favicon>: error calling add: can't apply the operator to the values
Built in 43 ms
PS A:\Hugo\sites\myblog>

Do you have any idea how to handle this?
I am using the current hugo version v0.87.0-B0C541E4+extended windows/amd64
Best wishes

Cloning and running vanilla repo doesn't render inline images.
eg)
http://localhost:1313/techfeed/blog/post6/

Request URL: http://localhost:1313/assets/images/03.jpg
Request Method: GET
Status Code: 404 Not Found
Remote Address: 127.0.0.1:1313
Referrer Policy: strict-origin-when-cross-origin
Content-Length: 19
Content-Type: text/plain; charset=utf-8
Date: Sun, 07 Nov 2021 03:43:38 GMT
X-Content-Type-Options: nosniff
Accept: image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9
Cache-Control: no-cache
Connection: keep-alive
Cookie: grafana_sess=97aa9355d2e94a73
Host: localhost:1313
Pragma: no-cache
Referer: http://localhost:1313/techfeed/blog/post6/
Sec-Fetch-Dest: image
Sec-Fetch-Mode: no-cors
Sec-Fetch-Site: same-origin
Sec-GPC: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36

Hi there. Thank you for awesome template!
This template use image directory on assets/images, however, OGP image tries to resolve static and failed.
I thought his line should be assets?